Open DESIRE is a modeling/simulation language for dynamic systems and neural networks, a runtime compiler, and an experiment-protocol script for simulation studies. It supports up to 40,000 differential equations or neural networks, in scalar and/or vector form. It also supports very fast Monte Carlo studies and complex frequency-response plots.

TOPCASED stands for Toolkit in OPen source for Critical Applications and SystEm Development. It is a system and software engineering workshop based on Eclipse. It aims to provide the tools required to go from requirements to the implementation stages. Focused on modeling development engineering, it includes several graphical editors (for ECORE, UML, SysML, SAM, AADL, and more), an OCL rules editor and checker, several code generators (SMUC, UML2C, UML2Java, UML2Python), a document generator, gPM (a ticket tracker), xHDL tools, Tramway (a requirements traceability framework), and more. External tools can be easily connected to the workshop through its API or models.

Acceleo is a code generator designed to
efficiently implement the MDA approach (Model Driven Architecture) and to improve software development productivity. It is natively integrated with Eclipse and EMF. It includes tools and editors making it easy to learn and to adapt to any kind of project or technology. It provides incremental generation, meta-model interoperability, simple and extensible syntax, template driven customization, and more.

MySQL Workbench is a cross-platform, graphical
database modeling tool for MySQL. It allows you to
create database models from scratch as well as by
importing existing databases from SQL or
DBDesigner4 models. You can then generate SQL code
to CREATE databases, ALTER them, and export in
various image formats and PDF/PS. Its extension
system allows writing plugins and scripts in Lua,
Python, and C++.

Visual Paradigm for UML (VP-UML) is a powerful, cross-platform, and easy-to-use visual UML modeling and CASE tool. It provides software developers with a cutting edge development platform to build quality applications faster, better, and cheaper. It facilitates excellent interoperability with other CASE tools and most of the leading IDEs.

Solid|matter is a 3D CAD application for product design. It is planned to feature parametrical, solid-based modeling, a sketcher with associative dimensions, and basic simulation of assembly kinematics. It is also designed to integrate well with the Gnome desktop.

grape3D is an application that reconstructs a 3D model with corresponding textures from a 2D movie file. The resulting model can be imported in any 3D application including Blender, ZBrush, Maya, and 3DS Max.

Umple can be used for pure UML modeling. Or it can be used to add UML constructs, such as associations and state machines to code written in Java, PHP, or Ruby. It generates code in these languages that can save a large amount of programming effort and result in higher quality. The UmpleOnline tool allows you to edit UML diagrams graphically, and watch the Umple textual code being written in real time. This works the other way too: you can write textual Umple and watch the corresponding UML diagram appear. Umple is being extended to support patterns, tracing, and a variety of other features. Umple is written in itself, which is central to maintaining its quality. Umple can be used today by any programmer or modeler.